ELECTROCARDIOGRAPHY(ECG)

<p>An electrocardiography (ECG) is <!--qkimaf OeOz8e_b0/HugV6--><!--cqw1tb OeOz8e_b0/HugV6-->a quick, painless, noninvasive test that records the heart&#39;s electrical activity<!--TgQPHd||[]-->. Sticky patches (electrodes) are placed on the skin to measure electrical impulses and map them as wave patterns. Doctors use these graphs to diagnose arrhythmias and heart attacks</p>